import java.util.Scanner;
public class Example3_4 {
    public static void main(String args []) {
    int number = 0;
    System.out.println("输入正整数（回车确定）");
    Scanner reader = new Scanner (System.in);
    number = reader.nextInt();
    switch(number) {
    case 9 :
    case 131 :
    case 12 :   System.out.println(number+"是三等奖");
      break;
    case 209 :
    case 596 :
    case 27 :   System.out.println(number+"是二等奖");
    break;
    case 875 :
    case 316 :
    case 59 :   System.out.println(number+"是一等奖");
     break;
    default :   System.out.println(number+"未中奖");
      }
   }
}
